They are now both under Directly Operated Railways (the DfTs operator of last resort) so all the money ends up going to the Treasury at the end of the day whether it comes via Northern or TPE. This has been the case since TPE was renationalised in May 2023 (Northern having be renationalised in March 2020). Arguably it has been the case since Covid but it's even more explicit now.Since when has this been the case and how does that work out of interest?